2023-02-23 04:31 AM
I use ADC 12 bit in STM32L03 and cannot find where CubeIDE defines which reference voltage the ADC should have. ADC_Init() is auto-generated. Is it the default used and what voltage is it?
The processor is fed with 3.3V and has VDDA connected to that voltage.
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2023-03-05 11:43 PM
Yes, pretty much. There is nothing stopping you from supplying the Vref pin (or VDDA) with a voltage that's more precise than the internal reference, but if you don't need the precision, you can basically compare the measured values to the the internal reference.